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IELTS
 JOURNAL 
 
 
70 
Sample Answer 23 
The diagram below shows how solar panels can be used to provide electricity for domestic use 
 
The picture illustrates the process of producing electricity in a home using solar 
panels. 
It is clear that there are five distinct stages in this process, beginning with the capture 
of energy from sunlight. The final two steps show how domestic electricity is 
connected to the external power supply. 
At the first stage in the process, solar panels on the roof of a normal house take 
energy from the sun and convert it into DC current. Next, this current is passed to an 
inverter, which changes it to AC current and regulates the supply of electricity. At 
stage three, electricity is supplied to the home from an electrical panel. 
At the fourth step shown on the diagram, a utility meter in the home is responsible 
for sending any extra electric power outside the house into the grid. Finally, if the 
solar panels do not provide enough energy for the household, electricity will flow 
from the utility grid into the home through the meter. 
(163 words) 
 

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